Belt-tightener



(No Model.) 2 Sheetq-Shet 1.

P. R. HYNES.

BELT TIGHTBNER.

No. 410,321. v Patented se mjlsa 2 Sheets-Sheet 2.

(No Model.) 1

F. R. HYNES. BELT TIGHTENER.

Patented Sept. 3, 1889.

UNITED STATES PATENT HOFFICE.

FRAN K R HYNEs, OF ROOHESTER, NEW YORK. v

BELT-TIGHTENER.

" SPECIFICATION forming part of Letters Patent No. 410,321, datedSeptember 3, 1889.

Application filed March 30, 1889- Serial No. 305,4:85. (No model.)

To all whom it 11mg concern:

Be it known that I, FRANK R. HYNES, of Rochester,in the county of Monroeand State of New York, have invented a certain new and usefulImprovement in Belt-Tighteners; and I do hereby declare that thefollowing is a full, clear, and exact description of the same,

reference being had to the drawings accompanying this application.

The object of my invention is'to provide means whereby a counter-shafthaving pulleys thereon may be moved bodily to tighten or loosen thedelivery-belt that extends from the pulleys to the machinery.

To this end my invention consists in the construction and arrangement of"parts hereinafter described and claimed.

In the drawings, Figure 1 is a front elevation of the apparatus. Fig. 2is an end elevation of the same, looking in the directionindicated bythe arrows at the right in Fig. 1.

A A indicate two or more hangers suspended from a ceiling or othersupport.

B is the counter-shaft, the ends of which rest in boxes (1 a, which havefree movement up and down in ways b b in the lower ends of the hangers.The boxes have flan ges c c,w.hich overlap the ways I) b and keep theboxes in place.

O O are fast and loose pulleys on which runs a driving-belt D, thatextends to a pulley on the line-shaft by which the power is columnnicated, and E E are a set of cone-pulleys, on which runs thedelivery-belt G, that drives the machinery. Any desired number of thepulleys may be used.

H H are two vertical screw-shafts at opposite ends, screwing at theirlower ends into the boxes an a, and sustained at their upper ends bycross-bars d d, or other suitable bearings of the hangers.

I is a longitudinal shaft above the hangers, and f f and f f arebevel-gears on said screwshafts and longitudinal shaft, engaging to--gether, as shown.

K is a hand-shaft provided with a handwheel g, and h i are twomiter-gears, respectively on the hand-shaft and longitudinal shaft,engaging together.

The operation is as follows: By turning the be raised or lowered bodilyand in accordancewith the. way in which the hand-shaft is turned. 0 Gand E E, willbe moved bodily up or down, and the tightening or theloosening action will be produced on the delivery-belt G, that ex: tendsto the machinery. The great advantage consists in locating the pulleysall on a counter-shaft and giving said shaft a movement bodily up anddown,whereby the delivery-belt is tightened and released, while thedrivingbelt is under constant motion and is not affected by theadjustment.

- The apparatus may be located vertically, as shown, or horizontally, orboth, or in any desired position.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, isg I In a belt-tightener, the combination of thehangers A A, provided with ways I) b, the boxes a a, resting loosely inthe hangers, the counter-shaft B, resting in said boxes and providedwith pulleys, the screw-shafts H H, screwing into the boxes, thelongitudinal shaft I, located above the hangers, the gears ff and f f,connecting the longitudinal shaft and The shaft B, and with it thepulleys screw-shafts, the hand-shaft K, and the gears h 1', connectingthe hand-shaft and longitudinal shaft, as shown and described, and forthe purpose specified.

In witness whereof I have hereunto signed my name in the presence of twosubscribing witnesses.

' FRANK R. HYNES. Witnesses:

RF. Oscoon,

P. A. COSTICH.

